Bosch gives 600 watts of peak energy with its new weight-reduction plan eMTB motor

Weighing in at a reported 4kg for the complete system, the brand new Bosch Efficiency Line SX drive unit is geared toward performance-focussed eMTB and eGravel riders. 

Bosch joins the half-fat eMTB motor brigade with the brand new Efficiency Line SX; new motor, new battery, new shows and controls, and new options on the eBike Movement App to regulate all of it.

Have to know:

• Reported 4kg full system weight
• 600 watt peak energy
• 55Nm max torque
• Compact 400 Watt battery, plus PowerMore 250 vary extender

The brand new system is geared toward eMTB riders who’re in search of a pure experience really feel and lightweight assist, and Bosch says the system can be excellent for eGravel riders.

Drive Unit

Due to design developments and a magnesium casing, the drive unit weighs in at a formidable reported weight of 2kg. It gives 55Nm of most torque and a peak energy output of 600 Watts, which is accessible at excessive cadences. So for instance in the event you’re furiously spinning the pedals and placing in some power up a technical climb, you may entry the complete obtainable energy.

This mixture of energy plus low weight provides the Efficiency Line SX a power-to-weight ratio of 300 Watts per Kilogram.

Battery

Additionally new is the battery, the CompactTube 400. This has been particularly tailored to go well with the Efficiency Line SX, works built-in into the downtube and is the lightest battery Bosch produces at a reported 2kg.

It has a 400Wh capability, which doesn’t sound like an entire lot, so we’ll have an interest to see how far that will get you on the path.

If the reply is ‘not far sufficient’ then you may bung on the aptly named PowerMore 250 vary extender. This water-bottle-sized piggyback battery gives an extra 250Wh on prime of the CompactTube 400 and will increase the vary by round 60% in accordance with Bosch. It additionally weighs 1.6kg.

eMTB (and eGravel) prepared

Gravel-haters look away now, as a result of plenty of the options that make the Efficiency Line SX nice for quick and lightweight eMTB driving additionally make it fairly rattling good for eGravel driving, and Bosch are actually pushing this software.

That features a discount in pedal resistance by round 50% reported, in comparison with different Bosch programs, so it provides a extra pure really feel when the cadence is excessive. There’s additionally a brand new Dash Mode which detects when the rider is placing within the effort – excessive cadence, excessive energy – and provides the assist extra shortly to assist the rider attain prime pace sooner.

Different attention-grabbing parts embody a lower-noise motor, for stealthier driving, and narrower cranks with a Q-factor of 160mm, once more giving a extra pure ride-feel.

Availability

The brand new Bosch Efficiency Line SX shall be obtainable retail from Autumn 2023, so in the event you’ve bought your eyes on it, you’ve bought time to avoid wasting up some pennies.

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